# MACHINERY
> MSHA accident `220162220020` · 08/05/2016 · Bridger Coal Company 
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** MACHINERY
- **Accident type:** Struck by... NEC
- **Occupation:** Longwall operator, Chock operator, Shear operator, Plow operator
- **Activity:** Longwall, Shear, Plow
- **Injury source:** LONGWALL SUPT,JKS & CHOCK
- **Nature of injury:** CONCUSSION-BRAIN,CEREBRAL
- **Body part:** BRAIN
- **Days lost:** 0
- **Mine experience:** 9.23 years
## Operator
- **Controller:** MidAmerican Energy Holdings Company; IDACORP
- **Operator:** Bridger Coal Company 
- **Mine:** [4801646](https://api.ai-analytics.org/mine/4801646)
## Narrative

Employee was working in shield #36 on the longwall face. A support (Duke) had been placed from the pan to the shield canopy, the Duke bled off and struck employee on the head. Employee momentarily lost consciousness, diagnosed with a mild concussion. 

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*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*